尝试从 Laravel 5.2 升级到 Laravel 5.3 时出现 Composer 错误答案

【问题标题】：Composer error when trying to upgrade from Laravel 5.2 to Laravel 5.3尝试从 Laravel 5.2 升级到 Laravel 5.3 时出现 Composer 错误
【发布时间】：2019-02-14 08:39:23
【问题描述】：

我按照 Laravel 官方文档网站上的说明进行操作。所以这是我的作曲家文件。我将symfony/css-selector 和symfony/dom-crawler 版本更改为3.1，但仍然出现此错误：

只能安装以下之一：symfony/console[v3.1.0, v2.7.9]。
- laravel/framework v5.3.0 需要 symfony/console 3.1.* -> 可以满足 symfony/console[v3.1.0, v3.1.1, v3.1.10, v3.1.2, v3.1.3、v3.1.4、v3.1.5、v3.1.6、v3.1.7、v3.1.8、v3.1.9]。
- 结论：不要安装 symfony/console v3.1.9|安装 kzykhys/ciconia v1.0.3
- kzykhys/ciconia ~1.0.0 的安装请求 -> 可满足 kzykhys/ciconia[v1.0.0, v1.0.1, v1.0.2, v1.0.3]。

  "require": {
    "php": ">=5.6.4",
    "laravel/framework": "5.3.*",
    "stevebauman/location": "1.3.*",
    "dingo/api": "1.0.*@dev",
    "yajra/laravel-datatables-oracle": "~6.0",
    "kzykhys/ciconia": "~1.0.0",
    "barryvdh/laravel-ide-helper": "^2.1",
    "cornford/googlmapper": "2.*",
    "likey/wiqi": "dev-master",
    "predis/predis": "^1.1",
    "rap2hpoutre/laravel-log-viewer": "^0.7.0",
    "nicolaslopezj/searchable": "1.*",
    "algolia/algoliasearch-laravel": "^1.3",
    "bcdh/exist-db-rest-client": "^1.0",
    "barryvdh/laravel-cors": "^0.8.2",
    "artesaos/seotools": "^0.10.0",
    "htmlmin/htmlmin": "^5.6",
    "contentful/contentful": "2.*"
  },
  "require-dev": {
    "fzaninotto/faker": "~1.4",
    "mockery/mockery": "0.9.*",
    "phpunit/phpunit": "~4.0",
    "symfony/css-selector": "3.1.*",
    "symfony/dom-crawler": "3.1.*",
    "oriceon/oauth-5-laravel": "dev-master",
    "xethron/migrations-generator": "dev-l5",
    "way/generators": "dev-master"
  },

当我尝试运行 composer update --no-scripts 时出现此错误

Problem 1
    - Conclusion: don't install laravel/framework v5.3.31
    - Conclusion: don't install laravel/framework v5.3.30

....

install symfony/console v2.8.44|install symfony/console v2.8.45
    - Installation request for laravel/framework 5.3.* -> satisfiable by laravel/framework[v5.3.0, v5.3.1, v5.3.10, v5.3.11, v5.3.12, v5.3.13, v5.3.14, v5.3.15, v5.3.16, v5.3.17, v5.3.18, v5.3.19, v5.3.2, v5.3.20, v5.3.21, v5.3.22, v5.3.23, v5.3.24, v5.3.25, v5.3.26, v5.3.27, v5.3.28, v5.3.29, v5.3.3, v5.3.30, v5.3.31, v5.3.4, v5.3.5, v5.3.6, v5.3.7, v5.3.8, v5.3.9].
    - Conclusion: don't install kzykhys/ciconia v1.0.3
    - Conclusion: don't install symfony/console v3.1.1|install kzykhys/ciconia v1.0.3
    - Conclusion: don't install symfony/console v3.1.2|install kzykhys/ciconia v1.0.3
    - Conclusion: don't install symfony/console v3.1.3|install kzykhys/ciconia v1.0.3
    - Conclusion: don't install symfony/console v3.1.4|install kzykhys/ciconia v1.0.3
    - Conclusion: don't install symfony/console v3.1.5|install kzykhys/ciconia v1.0.3
    - Conclusion: don't install symfony/console v3.1.6|install kzykhys/ciconia v1.0.3
    - Conclusion: don't install symfony/console v3.1.7|install kzykhys/ciconia v1.0.3
    - Conclusion: don't install symfony/console v3.1.8|install kzykhys/ciconia v1.0.3

【问题讨论】：

标签： laravel

【解决方案1】：

您无法更新的原因是因为您有一个名为kzykhys/ciconia 的包，如果您查看其中的composer.json，您会注意到要求此包具有"symfony/console":">=2.3,<2.5-dev" 与@987654324 冲突的行@ 要求，因为它需要 "symfony/console": "3.1.*""

|                           | kzykhys/ciconia | laravel/framework |
|---------------------------|-----------------|-------------------|
| `symfony/console` version | >=2.3,<2.5-dev  | 3.1.*             |

【讨论】：